Pulmonary Embolism Support Group
By far the most common form of pulmonary embolism is a thromboembolism, which occurs when a blood clot, generally a venous thrombus, becomes dislodged from its site of formation and embolizes to the arterial blood supply of one of the lungs. Symptoms may include difficulty breathing, pain during breathing, and more rarely circulatory instability and death.
http://www.bbc.co.uk/news/uk-scotland-glasgow-west-20805966
For me, it has never really been a problem. I grow lettuce, herbs, sprouts, asparagus, apples, ... in the garden which means there is a glut at certain times of the year. Just try and get a reasonably balanced diet and most people seem to be OK.
Indwen
http://www.drgourmet.com/warfarin/index.shtml#.Us9BRklrZMt
I have printed off a set of the veggies etc that are high and low and have it on my fridge door for reference, they give an amount we should stick to per day and I try to do that and if I go over I eat less the next day, they say just keep it the same everyday or other day how ever you are use to eating greens. I have had no problems since and also feel better for eating healthy, it scared me to start with but now I know that I need it in my diet to be healthy, hope this helps :).
Green apples are high in vit k but the other apples aren't :).
If you've been eating those fruits all along, then your warfarin dose is already set to accommodate any VitK they contain. If you stop eating them now, it could wind up changing things and your numbers could get wonky. And really, fruit is good for you!
I think the point is to not suddenly become a vegan or go gluten-free overnight and drastically change your diet. That'd definitely have an impact on your INR.
When I had first started Coumadin I was fairly religious to not eating/drinking foods with Vitamin K (because medical science at that time said to avoid such). As time went on and I learned more I found myself not watching what I ate as much (the medical communities philosphy on Vitamin K had also changed). Your blood clot researchers will tell you to keep your green leaf veggies in your daily diet (within moderation of course). I do know of vegetarians on Coumadin who have had no issues because the foods are their daily diet and their Coumadin Manager has adjusted their dosage accordingly and found that magical number to avoid the INR rollercoaster which was the initial fear associated with Vitamin K (more of an old school worry these days).
Here is a vitamin K finder that is helpful:
http://www.ptinr.com/cafe-ptinr/vitamin-k-finder
Lettuce, iceberg (includes crisphead types), raw
(measure) 1 medium
(micrograms) 1.9
(Vit K) Low
What? Huh?
Medium "what"? Leaf or head? It doesn't say.
Further down that list the site redeems itself and puts the correct measure/mcg/vit k values.
But the first thing the eye finds is the first listing, above. Not cool.
I find http://www.bitelog.com/ MUCH better than the ptinr.com site.
So yeah, eat what you normally eat, don't vary your diet by extremes and that's that. In my opinion, and that's all it is, any doctor, nurse, or warfarin manager who tells you to avoid high vitamin k foods is a) antiquated in their warfarin management approach, b) frustrated by one's stubborn INR, c) for some reason, afraid to up your warfarin dosage. I mean, there are people all over the world who eat a plant based diet and are on warfarin and manage to have a stable INR.
Iceberg lettuce has less than half the Vit K than Romaine lettuce. So you can eat more of it.
You may not be a cauliflower lover but a cup of raw cauliflower has about the same amount of Vit K as a cup of iceberg lettuce.
And one cup of raw blueberries has almost twice as much Vit K as a cup of shredded iceberg lettuce.
Kiwis aren't leafy but they ARE green and just one of them twice as much Vit K as one cup of iceberg lettuce. (Before my PE I could easily devour 4-5 at one sitting! Now, just a slice or two in a fruit salad!)
There are other non-green raw foods that have Vit K in them that a person who eats 'a ton of them' should be aware of. One apple without skin only has about 5 mcg Vit K in it. If more are used then ..... do the math.
Use http://www.bitelog.com/ to find out what you're eating.
Once you know what you're eating then the important thing is consistency. The doctor can adjust your warfarin to what you eat. I prefer to take less warfarin because side effects are dose related.
The same rules apply to Cranberry and Grapefruit (consume in moderation). Though I don't like posting articles from non-healthcare websites, this particular article was done in 2012 by the Anticoagulation Forum which is a healthcare organization made up of Coumadin Clinics from around the Country. The founder, Dr. Jack Ansell is a well known hemotologist who specializes in treatment of blood clots (Jack no longer run the AcForum but remains a member):
http://www.cranberryinstitute.org/HCP/Cranberry%20%20Warfarin%20OK%20Together%20-%20Formatted.pdf